广西地不容生物碱的研究

STUEIES ON THE ALKALOIDS OF STEPHANIA KWANGSIENSIS H. S. LO

摘要: 本文就防己科植物的一个新种广西地不容(Stephania kwangsiensis H.S.Lo,Sp.NOV.)的块根中的生物碱进行了分离和研究,除了分离得已知的生物碱l-四氢巴马亭,l-卡巴任碱、d-异紫堇定、l-罗默碱和去氢罗默碱外,尚分离得一种属于去氢阿朴啡(dehydroaporphine)类的新生物碱,即1,2-次甲二氧基-8-甲氧基去氢阿朴啡(1,2-methylenedioxy-8-methoxydehydro-aporphine),命名为去氢千金藤碱(dehydrostephanine)。

Abstract: Stephania kwangsiensis H. S. Lo is a new species found in the Southwestern region of Guangxi. Six alkaloids were isolated from its root tubers. Five of them were identified as l-tetrahydropalmatine, l-capaurine, d-Isocorydine, l-Roemerine and dehydroroemerine. The sixth one is a new Dehydroaporphine alkaloid named Dehydrostephanine whose structure is found to be l,2-methylenedioxy-8-methoxy-dehydroa-porphine.